Cord-knotter.



J. ANSKARP. UOBD KNOTTEB. ArrLloA'rIon Plum 1111.29. 100s.

933,126. menne@ Sapa 7, 1909.

BEBETBLILEET 1.

J. A. SHARP.

GRD KNOTTER. rumanos Hmm un'. as, mou.

Patented sept. 7, 1909.

B SHEETS-SHEET 2.

a 7W @y UNTTEI) STATES PATENT OFFICE.

JAMES A. SHARP, SPRINGFIELD, QEIO, ASSIGNOR T INTERNATIONAL HARVESTERCOMPANY, A CGRPORATION OF NEW JERSEY. l

conn-KNOTTEB..

933,126. 'p l Specification of Letters Patent. Patented Sept.. 7, 1909.Application med Hai-ch 29, 1909. Serial No. 486,358.

To all whom-'it may concern: and arranged in substantially a radial lineBe it known that I, JAMES. A. SHARP, a relative to the axis of the shaft1, the pinion citizen of the United States, residin at i 5 being securedto the upperend of the S ringiield, in lthe county of Clark and tateshaft.' The knot-ter hook, in its initial posino 0 Ohio, have inventedcertain new and usetion, trends rearward, and 17 represents a ful Imrovements in Cord Knotters, of continuation of the slot' 13 curvinginward whichtiie following is a specification. toward the axis of theshaft and then My invention .relates .to cord knotters for rearward andoutward beyond the path of grain binders, and in lpa rticuiar toimproved movement of they hook and adapted to guide means for operatingt e oord gate, means for the cord during the operationy .of the knotSeverin the cord, and to im rovements in tying mechanism, and 18designates a cord the cor holding device, its object being to retauiinarm pivotally connected with the make the cord knotter mechanism moreeiiibreast-p ate, by means of a pivot bolt 19; cient in operation andSimple iii constructhe arm being rovided with a branch portion. .Thisobject is attained by means of tion 20 adapte to be projected across thethe mechanism illustrated in the accompanyslot 13 in a manner to preventthe oord from ingflr'awingsn which passing therealong, and a rearwardlyexignre 1 is a, side'4 eleyation of a, knetter tending portion 21 thatcoacts with the cord mechanism having in y invention forming a holdingmechanism in a manner to control part thereof; Fig. 2 is a top view o fa pai-t the movement of the arm in a direction to of the breast-plate,showii the manner of release the cord, the plate spring 22 havingmounting the cord gate an the mode of its one end secured to thebreast-plate by means operation; Fig. 3 isla. sectional elevation of 0fa bolt 23.and its opposite end contacting part 0f Fig, 1; Fig, .4 is a,detail drawin with said cord i'etainin arm in a manner to 80 representina top view of the rotatable an move it in a'n opposite irection.non-rotatab e parts of the cord holder mech- The. cord holder incl udesa rotatable menianism and its pressure regulating spring; bei` 24,havinga conical n'iper surface Q5. Fig. 5 is a cross section of thenon-rotatnb e a portion of which is provi ed with grooves member of theoord holder `mechanism, as 26 an ularly arranged relative to the diree-B5' shown in Fig. 4, and a 4side Aelevation of the tion o rotationthereof; a cord en aging arm rotatable member; and F' 6 is a bottom 27integral with said member and arranged view; of the rotatable mem r,showin the a proximately concentric with the axis manner of attachingthe' cord cutting lade `t ereof and adapted to present the cord inthereto. w iro er position to be engaged by the. cord Likel referencecharacters desi ate the ol inlr member; n cord severing knife 2S sameparte throughout the seve views. secure( to a projecting ledge 2,9forming 1 desi ates the knottermechanism drv` part of said member-andhaving a down ing sha 2 the eam'wheei secured thereto, wardly extendedcutting edge 30. A downhaving the usual toothed portion 3, and a wardlyprojecting stem 31 is cccentrically 95 delay surface 4 for operativelyengagirli arranged relative to tht` axis of the said with the knotteractuating pinion 5 and oo member and adapted to contact. the rearholderactuating pinion 6, and 7 represents wai-diy extending portion 21 of thecord a bundle discharging arm secured to the. i'etaininv arin in amanner to swing lthe cam wheel. `latter aiout its pivotv when therotatabh` 8 represents the knotter yframe having a member ofthe cordholding mechanism is boaringt) at its u per end in which the turned inone direction. A shankl 32 is shaft 1 is journaled and a base portion 10journaled in a bearing 33, said bearing format. its lower forward end towhich is secured ing a part' of' the knotter frame S. and artliebreast-plate 11. ranged radially relative to the axis of Vthe 105 1Qrepresents the needle, and the bneastknotter'driving shaft 1; the cordholder plate is provided with a longitudinally arartuating pinion t'being secured tothe upper ran ed s ot 13 adapted to receive the needleend of said shank. during a. part of its operative movement. 34designates a non-rotatable.member of 14 esi'gnates a common forni ofknotter the cord holding mechanism that is loosely 110 book having itsshank portion 15 journaled j mounted upon the shank 32. between its in abearing 16 forming part of the fram- 8 5 'ciw-.ring ni the trame and therotas -.bie niember, in a mannen permitting it to move longitudinallyupon the shank, and having its lower end cup-shaped in a manner to coactwith the conical surface of the rotatable member in grippii'ig the cordbetween thc opposing surfaces of 'the two members, and an upwardly)roectiiig stein 35, arranged concentric' with tie axis of the shank andreceived by an opening in the frame for the purpose of securing themember against rotation.

3G designates a plate spring, or lever, having interiiiediateiils end, afulcrnin 3T upon the frame. one end of the plate being provided with a.slot 3S which loosely receives lh(` shank 32 and a rectangular boss atthe base of the stem 35, and the opposite end of the plate is providedwith an opening adapted to receive the set screw 39 that is screwed intothe kiiotter frame, preferably in a radial' lino relative to the axis ofthe. knotter driving shaft, a coil spring 40 being operative between thehead of the screw and the plate in a manner to vieldingly press thelatter in a direction to enlise its opposite end to exert a variablepressure upon the non-rotatable member of the cord holding mechanism.

In the operation of thtl mechanism the cord retaining arni is normallyprojected across the cord slot, 17 by the action of the spring 29.- Thecord passes from the eve of the needle across the retaining arm of theholder, the mechanism not beine grip ed thereby, and when the needle isa vanced it cncircles the bundle and delivers the cord to the holder,the two strands being retained by the cord retaining arm and the cordslot iii proper position for engagement with the knetter hook that inits rotative movement forms the knot -in a common way; the rotatablemember of the cord holding mechanism being revolved in a manner togriptheiieedle strand and swing the cord retaining arm bevond the path ofthe cord and cause thc knife to sever the same when the knot iscompleted.

What I claim as iii invention, andv desire tisecure by Letters atent.,is:

l. knotter mechanism including, in combination, a. rotatable cordholding member, a knotter hook, a breast-plate having al cord slottherein, a cold retaining arm means for piojecting said arm across saidslot, and means coperatin with said rotatable cord holding member ormoving said arm in an opposite direction. 2. A knotter mechanismincluding, in oombination arotatable cord holding member, a knotterhook, a breast-plate having a cord slot therein, a cord retaining armpivotally mounted upon said breast-plate, a. spring operative to projectsaid arm across said slot, a stem arran ed upon said rotatable cordholding Vmen r .eccentric to its axis and adapted to contact with saidcord retaining arm in a manner to move it against the pressure. of saidspring.

3. A knetter mechanism including, in coinbination, a driving shaft, aknotter frame having said shaft journaled therein, a breastplate securedto said frame and havin a cord slot therein, a. knetter hook journa edin said frame and normally extending across said slot, a cord retaininmounted upon said breast-p ate, a spring operative to project said armacross said slot in a manner to retain the cord in proper position to beengaged by said knotter hook, a rotatable cord, holding member, a shankforming part of said member and journaled in said frame, a stemprojecting downward from the lower surface of said rotatable cordholding member and arranged eccentric to its axis, said cord retainingarm having a rearward] extending ortion adapted to contact with saidstem uring a part of the rotative movement of said rotatable cordholding member.

4. A knotter mechanism including, in combination, a driving shaft, aknotter frame having said shaft journaled therein abreastplate securedto said `frame and aving a cord slot therein, a needle, a knetter hookjournaled in said frame, a cordholding mechanism, said mechanismincluding a shank journaled in a bearing forming-part of said frame andin rear of said knetter hook. a lion-rotatable cord holding memberslidably mounted upon said shank adjacentsaid frame, an upwardlyvprojecting stem arranged eccentriciill)Y u on said non-rotatable memberand interme iate said frame in a manner to prevent rotation of saidmember, a rotatable cord holdin member secured to the lowerend of saidsiank and ada ted to coact with said non-rotatable mem er in grippingthe cord, a lever having a fulcrum intermediate its ends 'upon the saidframe, one end of said lever engaging with the uper side ofsaidnon-rotatable member and iaving a slot therein adapted to receive saidshank, the opposite end of said lever bein adjustably and yieldingl)Tconnected Wit said frame.

5. knotter mechanism including, in coinbination, a driving shaft, aknetter frame having said shaft journaled therein abreastplate securedtosaid frame and having a oord slot therein, a lieedle, a knetter hookjournaled in said frame, a cord holding mechanism, said mechanismincluding a shank journaled ina bearing forming part of said frame andin rear of said knotter hook, a non-rotatable cord holding memberslidably mounted upon said shank adjacent said frame, an upwardlypro'ecting-stem arranged eccentri ally u on said non-rotatable memberand in rm inte said frame in a manner to prevent rotation of sai-dmember, ari-angular boss at the base of said stem, a

arm pivotally i rotatable cord holdinglmember secured to i the lower endof said shank and ada. ted to coect with said non-rotatable mem er inortion and a spring operative between said grippn the cord, a leverhaving e ulcrum Bead and the lever 1n s, manner to press the 5lntermeiate its ends upon said frame, one latter toward the frame.

end of said lever en a 'n with the u per l side of said non-rotagahnember and av- JAMES A' SHARP' received by said opening and srewed intosaid frame, said set screw hav-ing a head ing a slot therein adapted taoreceive said' Witnesses: shank and said angular boss, an opening in W.B. KENDIG, 10 the opposite end of seid lever, a` set screw H. GUYToN.

